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Minerals, Volume 12, Issue 7

July 2022 - 134 articles

Cover Story: Mineral inclusions in diamonds represent a window into the minerals and rocks in the upper mantle, and thus provide a unique opportunity to gain crucial information about the chemical and physical environment during their formation in the upper mantle. Polishing-exposed mineral inclusions in diamonds from the No. 50 kimberlite diatreme of China include olivine, chromite, garnet, orthopyroxene, Ca carbonate, magnesite, dolomite, norsethite, pyrrhotite, pentlandite, troilite, unknown hydrous magnesium silicate, Fe-rich phase, etc. This study using electron probe microanalysis and microscopy shows that a metasomatic enrichment event occurred in the diamond source region below the North China Craton and that the diamonds were likely formed by solid-state growth under metasomatic conditions. View this paper
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Articles (134)

  • Article
  • Open Access
9 Citations
3,803 Views
14 Pages

Cycling of Pt, Pd, and Rh Derived from Catalytic Converters: Potential Pathways and Biogeochemical Processes

  • Ioannis-Porfyrios Eliopoulos,
  • George Eliopoulos,
  • Theodora Sfendoni and
  • Maria Economou-Eliopoulos

21 July 2022

The present study is an integrated approach to the Pt, Pd, and Rh cycling derived from catalytic converters along highway roadsides of the Athens Basin, including their contents, the dispersed Pt- and Pd-bearing nano- and microparticles in dust and b...

  • Article
  • Open Access
4 Citations
2,801 Views
15 Pages

Response of Travertine Dam to Precipitation over the Past 800 Years in Zabuye Salt Lake, Southwestern Tibetan Plateau

  • Mingming Li,
  • Mianping Zheng,
  • Chuanyong Ye,
  • Chenguang Wang,
  • Xuefei Zhang,
  • Xuefeng Wang,
  • Yuanyi Zhao and
  • Yanbo Zhang

21 July 2022

The Tibetan Plateau is known as the core area of the third pole of the Earth and is a key area for global climate change research. This study uses the Zabuye Salt Lake travertine dam as the research object and U–Th dating as the chronological f...

  • Article
  • Open Access
6 Citations
2,571 Views
15 Pages

21 July 2022

The magnetotelluric (MT) sounding of a layered Earth model involving a transitional layer has been widely studied, and MT responses of the model with dipping anisotropic conductivity have also been treated. However, a model incorporating both a trans...

  • Article
  • Open Access
3,931 Views
20 Pages

21 July 2022

We performed an extensive optical and chemical analysis of a single Keokuk geode using electron microscopy (SEM) with energy dispersive X-ray (EDX) spectroscopy that revealed an extraordinary array of minerals and multiple, complex cycles of minerali...

  • Article
  • Open Access
2 Citations
3,046 Views
28 Pages

20 July 2022

The source and petrogenesis of peraluminous granitic rocks in orogenic belts can provide insights into the evolution, architecture, and composition of continental crust. Neoproterozoic peraluminous granitic rocks are sporadically exposed in the Tians...

  • Article
  • Open Access
6 Citations
2,400 Views
22 Pages

20 July 2022

As a typical tight oil reservoir in a lake basin, the Permian Lucaogou Formation of the Jimsar Sag in the Junggar Basin has great potential for exploration and development. However, at present, there are few studies on the identification of the diage...

  • Article
  • Open Access
3 Citations
2,160 Views
20 Pages

20 July 2022

The large Bayanbaolege Ag polymetallic ore deposit is located in the Tuquan-Linxi Fe (Sn)-Cu-Pb-Zn-Ag-Nb (Ta) polymetallic metallogenic belt, which is an important part of the Great Xing’an Range metallogenic province, northeast China. The sulf...

  • Article
  • Open Access
14 Citations
4,274 Views
25 Pages

The Effect of Pre-Oxidation on the Reducibility of Chromite Using Hydrogen: A Preliminary Study

  • Jamey Davies,
  • Merete Tangstad,
  • Eli Ringdalen,
  • Johan Paul Beukes,
  • Dmitri Bessarabov and
  • Stephanus Petrus du Preez

20 July 2022

The majority of ferrochrome (FeCr) is produced through the carbothermic reduction of chromite ore. In recent years, FeCr producers have been pressured to curve carbon emissions, necessitating the exploration of alternative smelting methods. The use o...

  • Article
  • Open Access
5 Citations
2,298 Views
13 Pages

20 July 2022

In this study, clay and non-clay minerals in the cement of Cretaceous volcanogenic–sedimentary rocks from the bottom of the marginal seas of the north-western Pacific Ocean and adjacent areas were studied. Corrensite and mixed-layer chlorite&nd...

  • Feature Paper
  • Article
  • Open Access
20 Citations
4,239 Views
27 Pages

20 July 2022

For a long time, particular attention was paid to glauconitization in the surficial sediments lying on the outer continental shelves of present oceans. Subsequently, the processes observed and analyzed may have served as models for studies of glaucon...

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Minerals - ISSN 2075-163X